Tool bit chuck



FIG. 1 is a perspective view of the tool bit chuck.

FIG. 2 is an opposite perspective view of the tool bit chuck.

FIG. 3 is a side view of the tool bit chuck.

FIG. 4 is an opposite side view of the tool bit chuck.

FIG. 5 is a top view of the tool bit chuck.

FIG. 6 is a front view of the tool bit chuck; and,

FIG. 7 is a rear view of the tool bit chuck.

The broken lines shown upon the body of the tool bit chuck are for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a tool bit chuck, substantially as shown. 